./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-patterns/array12_pattern.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/array-patterns/array12_pattern.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4cd544b9fc2c4c641198812054f6f7e3a4b46d14448acc5758393bf17818405b --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 02:44:42,979 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 02:44:43,038 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 02:44:43,043 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 02:44:43,044 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 02:44:43,069 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 02:44:43,069 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 02:44:43,069 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 02:44:43,070 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 02:44:43,073 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 02:44:43,073 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 02:44:43,073 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 02:44:43,074 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 02:44:43,074 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 02:44:43,074 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 02:44:43,074 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 02:44:43,075 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 02:44:43,075 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 02:44:43,076 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 02:44:43,077 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 02:44:43,077 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 02:44:43,077 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 02:44:43,078 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 02:44:43,078 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 02:44:43,078 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 02:44:43,078 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 02:44:43,078 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 02:44:43,079 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 02:44:43,079 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 02:44:43,079 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 02:44:43,079 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 02:44:43,079 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 02:44:43,080 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 02:44:43,080 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 02:44:43,080 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 02:44:43,081 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 02:44:43,081 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 02:44:43,081 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 02:44:43,081 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 02:44:43,082 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 02:44:43,082 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 02:44:43,082 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 02:44:43,082 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4cd544b9fc2c4c641198812054f6f7e3a4b46d14448acc5758393bf17818405b [2024-11-16 02:44:43,300 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 02:44:43,326 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 02:44:43,328 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 02:44:43,329 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 02:44:43,329 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 02:44:43,330 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-patterns/array12_pattern.c [2024-11-16 02:44:44,680 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 02:44:44,833 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 02:44:44,834 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-patterns/array12_pattern.c [2024-11-16 02:44:44,840 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3216a361e/cacc1e3b56764a768b1fac4b3cf0daa4/FLAG824627a1b [2024-11-16 02:44:44,850 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3216a361e/cacc1e3b56764a768b1fac4b3cf0daa4 [2024-11-16 02:44:44,852 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 02:44:44,853 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 02:44:44,854 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 02:44:44,854 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 02:44:44,860 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 02:44:44,861 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 02:44:44" (1/1) ... [2024-11-16 02:44:44,861 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a378be9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:44:44, skipping insertion in model container [2024-11-16 02:44:44,861 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 02:44:44" (1/1) ... [2024-11-16 02:44:44,876 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 02:44:45,016 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-patterns/array12_pattern.c[1349,1362] [2024-11-16 02:44:45,070 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 02:44:45,089 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 02:44:45,103 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-patterns/array12_pattern.c[1349,1362] [2024-11-16 02:44:45,116 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 02:44:45,128 INFO L204 MainTranslator]: Completed translation [2024-11-16 02:44:45,129 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:44:45 WrapperNode [2024-11-16 02:44:45,129 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 02:44:45,130 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 02:44:45,130 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 02:44:45,130 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 02:44:45,135 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:44:45" (1/1) ... [2024-11-16 02:44:45,140 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:44:45" (1/1) ... [2024-11-16 02:44:45,159 INFO L138 Inliner]: procedures = 16, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 87 [2024-11-16 02:44:45,160 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 02:44:45,160 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 02:44:45,160 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 02:44:45,161 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 02:44:45,169 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:44:45" (1/1) ... [2024-11-16 02:44:45,169 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:44:45" (1/1) ... [2024-11-16 02:44:45,174 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:44:45" (1/1) ... [2024-11-16 02:44:45,189 INFO L175 MemorySlicer]: Split 6 memory accesses to 2 slices as follows [2, 4]. 67 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 3 writes are split as follows [0, 3]. [2024-11-16 02:44:45,193 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:44:45" (1/1) ... [2024-11-16 02:44:45,194 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:44:45" (1/1) ... [2024-11-16 02:44:45,200 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:44:45" (1/1) ... [2024-11-16 02:44:45,200 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:44:45" (1/1) ... [2024-11-16 02:44:45,201 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:44:45" (1/1) ... [2024-11-16 02:44:45,202 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:44:45" (1/1) ... [2024-11-16 02:44:45,203 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 02:44:45,204 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 02:44:45,204 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 02:44:45,204 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 02:44:45,205 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:44:45" (1/1) ... [2024-11-16 02:44:45,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 02:44:45,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 02:44:45,247 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 02:44:45,249 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 02:44:45,289 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 02:44:45,289 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-16 02:44:45,289 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-16 02:44:45,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 02:44:45,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-16 02:44:45,289 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-16 02:44:45,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-16 02:44:45,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-16 02:44:45,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 02:44:45,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 02:44:45,291 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-16 02:44:45,291 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-16 02:44:45,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-16 02:44:45,369 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 02:44:45,371 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 02:44:45,501 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L45: call ULTIMATE.dealloc(main_~#array~0#1.base, main_~#array~0#1.offset);havoc main_~#array~0#1.base, main_~#array~0#1.offset; [2024-11-16 02:44:45,522 INFO L? ?]: Removed 17 outVars from TransFormulas that were not future-live. [2024-11-16 02:44:45,522 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 02:44:45,530 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 02:44:45,530 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 02:44:45,531 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 02:44:45 BoogieIcfgContainer [2024-11-16 02:44:45,531 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 02:44:45,532 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 02:44:45,532 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 02:44:45,535 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 02:44:45,535 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 02:44:44" (1/3) ... [2024-11-16 02:44:45,535 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dfd360d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 02:44:45, skipping insertion in model container [2024-11-16 02:44:45,535 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:44:45" (2/3) ... [2024-11-16 02:44:45,536 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dfd360d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 02:44:45, skipping insertion in model container [2024-11-16 02:44:45,536 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 02:44:45" (3/3) ... [2024-11-16 02:44:45,536 INFO L112 eAbstractionObserver]: Analyzing ICFG array12_pattern.c [2024-11-16 02:44:45,548 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 02:44:45,548 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 02:44:45,603 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 02:44:45,609 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@56234559, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 02:44:45,609 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 02:44:45,612 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 29 states have (on average 1.4827586206896552) internal successors, (43), 30 states have internal predecessors, (43), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 02:44:45,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-16 02:44:45,618 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 02:44:45,618 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 02:44:45,619 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 02:44:45,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 02:44:45,624 INFO L85 PathProgramCache]: Analyzing trace with hash 249674142, now seen corresponding path program 1 times [2024-11-16 02:44:45,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 02:44:45,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092648705] [2024-11-16 02:44:45,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 02:44:45,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 02:44:45,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:44:45,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-16 02:44:45,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:44:45,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 02:44:45,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 02:44:45,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092648705] [2024-11-16 02:44:45,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092648705] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 02:44:45,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 02:44:45,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 02:44:45,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694226644] [2024-11-16 02:44:45,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 02:44:45,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 02:44:45,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 02:44:45,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 02:44:45,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 02:44:45,765 INFO L87 Difference]: Start difference. First operand has 35 states, 29 states have (on average 1.4827586206896552) internal successors, (43), 30 states have internal predecessors, (43), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-16 02:44:45,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 02:44:45,787 INFO L93 Difference]: Finished difference Result 66 states and 96 transitions. [2024-11-16 02:44:45,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 02:44:45,788 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2024-11-16 02:44:45,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 02:44:45,793 INFO L225 Difference]: With dead ends: 66 [2024-11-16 02:44:45,793 INFO L226 Difference]: Without dead ends: 30 [2024-11-16 02:44:45,795 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 02:44:45,797 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 02:44:45,798 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 02:44:45,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2024-11-16 02:44:45,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2024-11-16 02:44:45,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 25 states have (on average 1.2) internal successors, (30), 25 states have internal predecessors, (30), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 02:44:45,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 36 transitions. [2024-11-16 02:44:45,821 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 36 transitions. Word has length 16 [2024-11-16 02:44:45,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 02:44:45,822 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 36 transitions. [2024-11-16 02:44:45,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-16 02:44:45,822 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2024-11-16 02:44:45,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-16 02:44:45,823 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 02:44:45,823 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 02:44:45,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 02:44:45,824 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 02:44:45,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 02:44:45,824 INFO L85 PathProgramCache]: Analyzing trace with hash -526392402, now seen corresponding path program 1 times [2024-11-16 02:44:45,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 02:44:45,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612317307] [2024-11-16 02:44:45,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 02:44:45,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 02:44:45,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:44:46,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-16 02:44:46,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:44:46,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 02:44:46,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:44:46,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 02:44:46,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:44:46,159 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-16 02:44:46,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 02:44:46,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612317307] [2024-11-16 02:44:46,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612317307] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 02:44:46,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1916741025] [2024-11-16 02:44:46,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 02:44:46,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 02:44:46,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 02:44:46,165 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 02:44:46,167 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 02:44:46,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:44:46,232 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-16 02:44:46,236 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 02:44:46,323 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-16 02:44:46,324 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 02:44:46,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1916741025] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 02:44:46,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 02:44:46,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2024-11-16 02:44:46,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997313795] [2024-11-16 02:44:46,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 02:44:46,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 02:44:46,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 02:44:46,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 02:44:46,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-16 02:44:46,327 INFO L87 Difference]: Start difference. First operand 30 states and 36 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-16 02:44:46,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 02:44:46,389 INFO L93 Difference]: Finished difference Result 73 states and 85 transitions. [2024-11-16 02:44:46,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 02:44:46,390 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 31 [2024-11-16 02:44:46,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 02:44:46,391 INFO L225 Difference]: With dead ends: 73 [2024-11-16 02:44:46,391 INFO L226 Difference]: Without dead ends: 45 [2024-11-16 02:44:46,391 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-16 02:44:46,392 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 13 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 02:44:46,393 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 95 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 02:44:46,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2024-11-16 02:44:46,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 32. [2024-11-16 02:44:46,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 27 states have internal predecessors, (32), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 02:44:46,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 38 transitions. [2024-11-16 02:44:46,398 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 38 transitions. Word has length 31 [2024-11-16 02:44:46,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 02:44:46,399 INFO L471 AbstractCegarLoop]: Abstraction has 32 states and 38 transitions. [2024-11-16 02:44:46,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-16 02:44:46,399 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 38 transitions. [2024-11-16 02:44:46,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-16 02:44:46,400 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 02:44:46,400 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 02:44:46,412 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-16 02:44:46,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 02:44:46,601 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 02:44:46,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 02:44:46,603 INFO L85 PathProgramCache]: Analyzing trace with hash 660537186, now seen corresponding path program 1 times [2024-11-16 02:44:46,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 02:44:46,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383918397] [2024-11-16 02:44:46,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 02:44:46,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 02:44:46,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:44:46,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-16 02:44:46,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:44:46,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 02:44:46,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:44:46,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 02:44:46,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:44:46,765 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 02:44:46,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 02:44:46,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383918397] [2024-11-16 02:44:46,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383918397] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 02:44:46,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1523487057] [2024-11-16 02:44:46,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 02:44:46,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 02:44:46,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 02:44:46,767 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 02:44:46,768 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 02:44:46,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:44:46,811 INFO L255 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-16 02:44:46,812 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 02:44:46,835 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-16 02:44:46,836 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 02:44:46,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1523487057] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 02:44:46,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 02:44:46,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2024-11-16 02:44:46,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650350010] [2024-11-16 02:44:46,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 02:44:46,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 02:44:46,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 02:44:46,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 02:44:46,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-16 02:44:46,838 INFO L87 Difference]: Start difference. First operand 32 states and 38 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-16 02:44:46,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 02:44:46,872 INFO L93 Difference]: Finished difference Result 62 states and 75 transitions. [2024-11-16 02:44:46,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 02:44:46,873 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 36 [2024-11-16 02:44:46,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 02:44:46,873 INFO L225 Difference]: With dead ends: 62 [2024-11-16 02:44:46,874 INFO L226 Difference]: Without dead ends: 36 [2024-11-16 02:44:46,874 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-16 02:44:46,875 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 14 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 02:44:46,875 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 65 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 02:44:46,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2024-11-16 02:44:46,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2024-11-16 02:44:46,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 31 states have (on average 1.1612903225806452) internal successors, (36), 31 states have internal predecessors, (36), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 02:44:46,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 42 transitions. [2024-11-16 02:44:46,879 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 42 transitions. Word has length 36 [2024-11-16 02:44:46,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 02:44:46,879 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 42 transitions. [2024-11-16 02:44:46,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-16 02:44:46,879 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 42 transitions. [2024-11-16 02:44:46,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-16 02:44:46,880 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 02:44:46,880 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 02:44:46,892 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-16 02:44:47,084 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-16 02:44:47,085 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 02:44:47,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 02:44:47,087 INFO L85 PathProgramCache]: Analyzing trace with hash 22097025, now seen corresponding path program 1 times [2024-11-16 02:44:47,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 02:44:47,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842316879] [2024-11-16 02:44:47,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 02:44:47,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 02:44:47,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:44:47,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-16 02:44:47,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:44:47,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-16 02:44:47,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:44:47,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 02:44:47,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:44:47,177 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-16 02:44:47,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 02:44:47,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842316879] [2024-11-16 02:44:47,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842316879] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 02:44:47,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [40553205] [2024-11-16 02:44:47,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 02:44:47,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 02:44:47,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 02:44:47,183 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 02:44:47,187 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 02:44:47,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:44:47,244 INFO L255 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-16 02:44:47,245 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 02:44:47,300 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-16 02:44:47,301 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 02:44:47,365 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-16 02:44:47,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [40553205] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 02:44:47,367 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 02:44:47,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2024-11-16 02:44:47,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106037714] [2024-11-16 02:44:47,367 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 02:44:47,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 02:44:47,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 02:44:47,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 02:44:47,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-16 02:44:47,369 INFO L87 Difference]: Start difference. First operand 36 states and 42 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 02:44:47,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 02:44:47,454 INFO L93 Difference]: Finished difference Result 57 states and 64 transitions. [2024-11-16 02:44:47,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 02:44:47,455 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 38 [2024-11-16 02:44:47,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 02:44:47,455 INFO L225 Difference]: With dead ends: 57 [2024-11-16 02:44:47,455 INFO L226 Difference]: Without dead ends: 52 [2024-11-16 02:44:47,456 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 78 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-16 02:44:47,456 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 40 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 02:44:47,456 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 86 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 02:44:47,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2024-11-16 02:44:47,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 42. [2024-11-16 02:44:47,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 36 states have (on average 1.1388888888888888) internal successors, (41), 36 states have internal predecessors, (41), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 02:44:47,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 47 transitions. [2024-11-16 02:44:47,469 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 47 transitions. Word has length 38 [2024-11-16 02:44:47,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 02:44:47,469 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 47 transitions. [2024-11-16 02:44:47,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 02:44:47,469 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 47 transitions. [2024-11-16 02:44:47,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-16 02:44:47,470 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 02:44:47,470 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 02:44:47,484 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-16 02:44:47,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 02:44:47,672 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 02:44:47,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 02:44:47,675 INFO L85 PathProgramCache]: Analyzing trace with hash -762431677, now seen corresponding path program 1 times [2024-11-16 02:44:47,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 02:44:47,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558598468] [2024-11-16 02:44:47,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 02:44:47,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 02:44:47,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-16 02:44:47,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1896685924] [2024-11-16 02:44:47,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 02:44:47,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 02:44:47,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 02:44:47,698 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 02:44:47,702 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-16 02:44:47,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:44:47,754 INFO L255 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-11-16 02:44:47,757 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 02:44:47,915 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-16 02:44:48,393 INFO L349 Elim1Store]: treesize reduction 156, result has 26.4 percent of original size [2024-11-16 02:44:48,394 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 45 treesize of output 77 [2024-11-16 02:44:49,867 INFO L349 Elim1Store]: treesize reduction 36, result has 71.0 percent of original size [2024-11-16 02:44:49,868 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 142 treesize of output 170 [2024-11-16 02:45:29,283 WARN L286 SmtUtils]: Spent 10.99s on a formula simplification that was a NOOP. DAG size: 134 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)